https://bugs.kde.org/show_bug.cgi?id=426983

            Bug ID: 426983
           Summary: Exporting with libx264rgb results in strange colors
           Product: kdenlive
           Version: 20.08.1
          Platform: Microsoft Windows
                OS: Microsoft Windows
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Video Display & Export
          Assignee: j...@kdenlive.org
          Reporter: the_guy_with_h...@hotmail.com
  Target Milestone: ---

Created attachment 131945
  --> https://bugs.kde.org/attachment.cgi?id=131945&action=edit
Input (Left), Output (right)

SUMMARY

I want to export a video in lossless libx264rgb.

I can convert my source video to this format with ffmpeg just fine, like so: 
ffmpeg -i input.avi -c:v libx264rgb -crf 0 output.mp4

However, if I try to RENDER to this format using kdenlive, the output video has
strange colors.

Changing the Project's Color Space does not seem to help.

STEPS TO REPRODUCE
1. Render->Create New Profile
--- Profile Name: Libx264rgb
--- Parameters: vcodec=libx264rgb crf=0
--- OK
2. Select "Libx264rgb" and click Render.

OBSERVED RESULT
Strange colors.
White -> Pink
Black -> Green

EXPECTED RESULT
Normal colors.

SOFTWARE/OS VERSIONS
Windows: 10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 5.71.0
Qt Version: 5.15.0

ADDITIONAL INFORMATION

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